(Compact) Bone

Features
to Know: lamellae (1), osteocytes in lacunae
(2), canaliculi (3), Haversian
canal (4). An entire set of concentric rings (lamellae) is called a Haversian System.

Fibers
Present: collagen fibers present but not visible.

Where
Located:bones .

Functions: support,
protection, act as levers, mineral storage.

Blood

Identification: The numerous round,
red blood cells in a featureless matrix are unmistakable.

Features
to Know: the liquid matrix is called the plasma. The numerous round, red cells are erythrocytes (or red blood cells) that
lack nuclei (the center of the cell is depressed and thus may appear lighter
colored). There are also smaller numbers of larger white cells with large,
multi-lobed nuclei called leucocytes (or white blood cells; 1).